September 2020 Update

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Carles Curto Text: Carles Curto (formerly curator of the Geology Museum, Barcelona) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator) John S. White


MEXICO

Olivenite
Olivenite. Olivenite.

Recorded under neon light
 

TT96AL9: A novelty at Tucson 2020. Druse of elongated Olivenite crystals on matrix with sharp faces and edges and good terminal faces, with good luster and a very deep olive green color. As with so many other finds fromn Milpillas, among the best for the species.
Milpillas Mine, level 992, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (11-12/2019)

Specimen size: 7.2 × 5.5 × 1.6 cm = 2.83” × 2.17” × 0.63”

Main crystal size: 0.6 × 0.1 cm = 0.24” × 0.04”




Order

SPAIN

Stokesite on Microcline with Albite
 

NA13AL9: Aggregate of very sharp, colorless, transparent and shiny Stokesite crystals on a little Microcline matrix with Albite. These Stokesites, found in 1999 and featured in an article in The Mineralogical Record in 2012, are considered the best crystallized Stokesites in the world and were found in a single pocket from which very few specimens were recovered.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Madrid, Community of Madrid  Spain (1999)

Specimen size: 1 × 0.8 × 1 cm = 0.39” × 0.31” × 0.39”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”




Stokesite on Microcline with Albite. Front
Front
Stokesite on Microcline with Albite. Rear
Rear
Order
Twinned Cerussite
Twinned Cerussite. Twinned Cerussite.
Twinned Cerussite  

NJ70AL9: Floater growth of flattened reticulated prismatic twins of Cerussite whose white color shows a slightly brownish-pinkish tinge. In perfect condition, with a rosette-like appearance different from other specimens commonly seen from this locality.
The specimen comes from the Ignacio Gaspar Sintes collection.
Luis Mine, 88 m.↓ Norte vein, Del General Mines, Cabezarrubias del Puerto, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (10/2013)

Specimen size: 4.7 × 3.8 × 2.9 cm = 1.85” × 1.50” × 1.14”

Main crystal size: 3.5 × 0.6 cm = 1.38” × 0.24”

Minor fluorescence short UV

Former collection of Ignacio Gaspar



Order
Sphalerite with Dolomite
 

NA27AL9: Complex crystals of Sphalerite on a Dolomite matrix. The crystal is transparent, lustrous and with an intense and lively honey color. With contacts but no damage. Small parts of the back of the matrix have been cut to reduce the size of the specimen without damage to the crystals.
Las Mánforas Mine, Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 7 × 5.5 × 4.4 cm = 2.76” × 2.17” × 1.73”

Main crystal size: 2.2 × 1.6 cm = 0.87” × 0.63”




Sphalerite with Dolomite. Sphalerite with Dolomite.
Order

SPANISH FLUORITE

Fluorite with Calcite
Fluorite with Calcite. Front
Front
Fluorite with Calcite. Side
Side
Fluorite with Calcite. Side
Side
 

NC69AL9: Group of cubic Fluorite crystals with scalenohedral Calcite crystals on the back. The Fluorite crystals are transparent and very lustrous, with a color between lilac and violet and with markedly geometric zoning.
This Spanish classic comes from the collection of Miguel David Martínez (number 327), whose label we will send to the buyer.
La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Asturias, Principality of Asturias  Spain (2017)

Specimen size: 8.8 × 8.4 × 6.4 cm = 3.46” × 3.31” × 2.52”

Main crystal size: 5.4 × 5.4 cm = 2.13” × 2.13”

Former collection of Miguel David Martínez



Order
Fluorite with Calcite
 

NF89AL9: Group of Fluorite crystals with fine dominant cube faces but clearly beveled by dodecahedral forms, very transparent, with good luster and a light lilac color, on matrix, with white scalenohedral Calcite crystals. The matrix has been sawn with a single cut on the back.
Llamas Quarry, Obdulia vein, Caravia mining area, Las Cabañas, Duyos, Caravia, Comarca Oriente, Asturias, Principality of Asturias  Spain

Specimen size: 11.4 × 8 × 4.7 cm = 4.49” × 3.15” × 1.85”

Main crystal size: 1.6 × 1.1 cm = 0.63” × 0.43”




Fluorite with Calcite. Fluorite with Calcite.
Order
Fluorite with Calcite
Fluorite with Calcite. Fluorite with Calcite.
 

MF89AL9: Aggregate of cubic Fluorite crystals between transparent and translucent, lustrous, with a light green color with yellowish tones. Covered by complex Calcite crystals with the dominant forms of the scalenohedron. A classic of Spanish mineralogy, with more luster than usual in specimens from this deposit.
Matagalls Mine (Sant Marçal Mines), Sant Marçal, Viladrau, Comarca Osona, Girona / Gerona, Catalonia  Spain

Specimen size: 13.2 × 11.8 × 6.7 cm = 5.20” × 4.65” × 2.64”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”

Fluorescent long & short UV



Order

PORTUGAL

Pyrite with Calcite
 

NC27AL9: Polycrystalline aggregates of hexahedral Pyrite crystals, with good luster and curious color variations, ranging from greenish yellow to brassy. An unusually aesthetic specimen from a very recent find in Panasqueira.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (07-08/2020)

Specimen size: 9.6 × 6.4 × 3.5 cm = 3.78” × 2.52” × 1.38”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”




Pyrite with Calcite. Front
Front
Pyrite with Calcite. Side
Side
Pyrite with Calcite.
Order

FRANCE

Prehnite with Epidote and Albite
Prehnite with Epidote and Albite. Prehnite with Epidote and Albite.
 

EF37AL9: Prehnite crystals with sharp edges and well defined faces. With very marked curvatures and polycrystalline growths, translucent, shiny, and with an intense green color. On matrix, with Calcite and small, very sharp crystals of Epidote, transparent, very lustrous and with deep color. Excellent French classic from one of the typical localities for the species.
La Combe de la Selle, Saint-Christophe-en-Oisans, Le Bourg d'Oisans Comune, Isère, Auvergne-Rhône-Alpes  France (±1990)

Specimen size: 4.3 × 3.4 × 2.9 cm = 1.69” × 1.34” × 1.14”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”




Order

TURKEY

Diaspore
 

ER98AL9: Mostly new after the Sainte Marie 2020 Virtual Show, from a classic Turkish locality but with a different transparency and color. The crystal is incomplete at the bottom, but has very sharp polycrystalline upper terminations. It is transparent, lustrous, deep yellow-green in focused natural light and more yellow under halogen lights, with very clearly visible dichroism shifting between soft red and green.
Ilbir Mountain, Pinarcik, Milâs District, Muğla Province, Aegean Region  Turkey (2020)

Specimen size: 5.7 × 1.8 × 1 cm = 2.24” × 0.71” × 0.39”




Diaspore. Front - Day light (incident light)
Front - Day light (incident light)
Diaspore. Front - Led light
Front - Led light
Diaspore. Rear - Day light (incident light)
Rear - Day light (incident light)
Diaspore. Rear - Led light
Rear - Led light
Order

MOROCCO

Baryte with Quartz, Pyrite and Marcasite
Baryte with Quartz, Pyrite and Marcasite. Front
Front
Baryte with Quartz, Pyrite and Marcasite. Rear
Rear
Baryte with Quartz, Pyrite and Marcasite. Baryte with Quartz, Pyrite and Marcasite.
 

EC27AL9: Book-like aggregates of lamellar Baryte crystals on matrix, with Quartz crystals and partial coatings of small, very bright crystals of Pyrite and Marcasite. The back of the matrix shows missing crystal casts, probably an earlier generation of Baryte crystals.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (2017)

Specimen size: 14.5 × 9.9 × 6.4 cm = 5.71” × 3.90” × 2.52”




Order

SOUTH AMERICA (excl. Brazil)

'Pearceite' with Calcite
 

TH27AL9: Group of ‘Pearceite’ crystals with sharp faces and edges, and very marked striations, shiny and aesthetically centered on its matrix of white Calcite crystals. We label the species with quotation marks around 'Pearceite' due to the changes introduced by the IMA in the nomenclature of the species, which was recently subdivided.
Uchucchacua Mine, Oyón Province, Lima Department  Peru

Specimen size: 3.9 × 2 × 1,9 cm = 1.54” × 0.79” × 0.39”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

Calcite fluorescent long & short UV



'Pearceite' with Calcite. 'Pearceite' with Calcite.
'Pearceite' with Calcite.
Order

CHINA

Carbonatecyanotrichite with Calcite and Fluorite
Carbonatecyanotrichite with Calcite and Fluorite. Front
Front
Carbonatecyanotrichite with Calcite and Fluorite. Rear
Rear
 

AX11AL9: Felted aggregates of filiform crystals of Carbonatecyanotrichite, a different species from the better known Cyanotrichite, with an intense and uniform blue color. On matrix, with Calcite and small Fluorite crystals.
Qinglong Mine, Dachang, Qinglong, Qianxi'nan Autonomous Prefecture, Guizhou Province  China

Specimen size: 1.4 × 0.9 × 0.7 cm = 0.55” × 0.35” × 0.28”




Order
Carbonatecyanotrichite with Calcite and Fluorite
 

AV13AL9: Felted aggregates of filiform crystals of Carbonatecyanotrichite, a different species from the better known Cyanotrichite, with an intense and uniform blue color. On matrix, with Calcite and small Fluorite crystals.
Qinglong Mine, Dachang, Qinglong, Qianxi'nan Autonomous Prefecture, Guizhou Province  China

Specimen size: 1.5 × 1 × 0.8 cm = 0.59” × 0.39” × 0.31”




Carbonatecyanotrichite with Calcite and Fluorite. Front
Front
Carbonatecyanotrichite with Calcite and Fluorite. Rear
Rear
Order
Carbonatecyanotrichite with Calcite and Fluorite
Carbonatecyanotrichite with Calcite and Fluorite. Front
Front
Carbonatecyanotrichite with Calcite and Fluorite. Rear
Rear
 

AR12AL9: Felted aggregates of filiform crystals of Carbonatecyanotrichite, a different species from the better known Cyanotrichite, with an intense and uniform blue color. On matrix, with Calcite and small Fluorite crystals.
Qinglong Mine, Dachang, Qinglong, Qianxi'nan Autonomous Prefecture, Guizhou Province  China

Specimen size: 2,7 × 1.3 × 1.4 cm = 0.79” × 0.51” × 0.55”




Order


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